TWI639173B - High frequency relay - Google Patents

Abstract

The high frequency relay includes an insulative outer casing, a relay body including an electromagnetic stone portion and a contact mechanism portion, and a shield member. The relay body includes a plate-shaped relay terminal, and the shielding member includes a shield body covering the relay body and a plate-shaped ground terminal. The board surface of the relay terminal and the board surface of the ground terminal extend in parallel directions of the relay terminal and the ground terminal, and the relay terminals and the ground terminal adjacent to each other are arranged at intervals in the parallel direction.

Description

High frequency relay

The present disclosure is directed to a high frequency relay.

Patent Document 1 discloses a high frequency relay including a relay body having a contact mechanism portion that internally switches a contact state in accordance with energization of a coil, and is provided in a contact mechanism The electrically connected terminals protrude from the bottom surface. In the high-frequency relay, the isolation body is improved by covering the relay body with a base including a conductor layer having an earth function and a cover. [Prior Art Document] [Patent Literature]

[Patent Document 1]: Japanese Patent Laid-Open Publication No. 2003-132774

[Problem to be Solved by the Invention] However, in the high-frequency relay, it is desirable to improve the isolation characteristic of the high-frequency signal leakage between the contacts in the off state of the contact, and thus to other The improvement of high frequency characteristics has not been considered. Therefore, in the high-frequency relay, it is difficult to suppress variation in characteristic impedance and to improve high-frequency characteristics.

Therefore, an object of the present invention is to provide a high frequency relay having excellent high frequency characteristics while suppressing variations in characteristic impedance. [Technical means to solve the problem]

A high frequency relay according to an example of the present disclosure includes: an insulating outer casing including a base having a relay body installation surface; and a box-shaped outer casing covering the relay body installation surface of the base; and a relay body including: an electromagnet a portion disposed inside the outer casing and on the relay body installation surface of the base, and capable of supplying current; and a contact mechanism portion that is opened and closed by supplying current to the electromagnet portion; and a shielding member Provided on the interior of the outer casing and on the relay body setting surface of the base; and the relay body includes: at least one plate-shaped relay terminal from which the relay body is disposed a surface extending in a direction extending through the base to the outside of the outer casing and electrically connected to the contact mechanism portion; the shielding member comprising: a shielding body covering the relay body; and at least a plate-shaped ground terminal from the shielding body in a direction crossing the setting surface of the relay body Extending to the outside of the outer casing through the base, and being arranged in parallel with the relay terminal; the plate surface of the relay terminal and the plate surface of the ground terminal are along the relay terminal and the The parallel direction of the ground terminals extends, and the relay terminals and the ground terminals adjacent to each other are arranged at intervals in the parallel direction. [Effects of the Invention]

According to the high-frequency relay, the plate surface of the relay terminal and the plate surface of the ground terminal extend in parallel directions of the relay terminal and the ground terminal, and the relay terminals and the ground terminal adjacent to each other are spaced apart in the parallel direction. . Thereby, variation in characteristic impedance can be suppressed, and high frequency characteristics can be improved.

Hereinafter, an embodiment of the present disclosure will be described with reference to the accompanying drawings. In addition, in the following description, a term indicating a specific direction or position (for example, terms including "upper", "lower", "right", and "left") is used as needed, but the purpose of use of these terms is used. It is to be understood that the disclosure of the drawings is readily understood, and the technical scope of the disclosure is not limited by the meaning of the terms. Further, the following description is merely illustrative in nature and is not intended to limit the disclosure, the application, or the use thereof. In addition, the drawings are schematic diagrams, and ratios of the respective dimensions and the like do not necessarily coincide with actual ratios and the like.

As shown in FIGS. 1 and 2, the high-frequency relay 1 according to the embodiment of the present disclosure includes an insulating outer casing 10, a relay body 20 provided inside the outer casing 10, and a shield member 30.

As shown in FIG. 2, the outer casing 10 includes a base 11 having a relay body setting surface 111, and a casing 12 covering the relay body setting surface 111 of the base 11. The base 11 and the outer casing 12 are made of an insulating resin and sealed by a sealing material (not shown).

As shown in FIG. 3, the base 11 has a substantially rectangular shape in plan view in a direction orthogonal to the relay main body installation surface 111. In the both edge portions of the base 11 extending in the longitudinal direction of the relay main body installation surface 111, for example, four first terminal slots 112 and five second terminal slots 113 are provided, for example. The first terminal groove 112 and the second terminal groove 113 penetrate the base 11 in a direction orthogonal to the relay main body installation surface 111 of the chassis 11 . Further, the first terminal groove 112 and the second terminal groove 113 are arranged in a line along the side extending in the longitudinal direction of the chassis 11, and the first terminal groove 112 is disposed in the adjacent two second terminal slots. Between 113.

In addition, when each of the first terminal groove 112 and each of the second terminal grooves 113 is viewed in a direction orthogonal to the relay main body installation surface 111, the length in the short-side direction of the chassis 11 (that is, the groove width) is substantially the same. The length of the base 11 in the longitudinal direction (that is, the groove length) is configured such that the second terminal groove 113 is longer than the first terminal groove 112.

As shown in FIG. 2, the outer casing 12 has a rectangular hollow box shape that is open on one side, and covers the relay body installation surface 111 of the base 11.

As shown in FIG. 4, the relay body 20 is disposed inside the outer casing 10 and on the relay body setting surface 111 of the base 11. The relay body 20 includes an inner casing 21 having a substantially rectangular parallelepiped shape, an electromagnet portion 22 that is provided in the inner casing 21 and capable of supplying a current, and a contact mechanism portion 23 that is opened and closed by supplying a current to the electromagnet portion 22.

A pair of plate-shaped coil terminals 24 (only one of which is shown in FIG. 4) is electrically connected to the electromagnet portion 22, and a current is supplied via the pair of coil terminals 24. The surface of the inner casing 21 of the relay main body 21 facing the relay main body installation surface 111 of the base 11 is referred to as a first surface 211, and the four surfaces intersecting the first surface 211 are referred to as a second surface 212, In the second surface 213, the second surface 214, and the second surface 215, the coil terminals 24 are in the inner casing 21 from the four second surfaces 212, the second surface 213, the second surface 214, and the second surface 215. The second surface 212 and the second surface 213 extending in the longitudinal direction penetrate the base 11 in a direction intersecting the relay main body installation surface 111 of the chassis 11 and extend to the outside of the outer casing 10 . Further, the pair of coil terminals 24 are inserted into the first terminal groove 112, and the first terminal groove 112 is disposed at one end in the longitudinal direction of the relay main body installation surface 111 of the chassis 11.

As shown in FIG. 4, the contact mechanism unit 23 has a substantially central portion in the short-side direction of the inner casing 21 and an inner casing on the upper surface of the inner casing 21 (that is, the upper surface of FIG. 4). A rectangular plate-shaped movable iron piece 231 extending in the longitudinal direction of 21, and a pair of rectangular plate-shaped movable contact pieces 232 disposed on both sides in the short-side direction of the movable iron piece 231.

The movable iron piece 231 is rotatable about the rotation shaft 233 which is centered in the longitudinal direction of the inner casing 21 and on the short side of the inner casing 21 by supplying electric current to the electromagnet portion 22. Extend in the direction. The movable contact piece 232 is rotated by the movable iron piece 231, and is rotated in the same direction as the movable iron piece 231 centering on the rotating shaft 233. The first movable contact 234 and the second movable contact 235 are provided at both ends of the surface facing the base 11 in the longitudinal direction of the movable iron piece 231.

Further, the contact mechanism unit 23 includes three pairs of plate-shaped relay terminals 25, relay terminals 26, and relay terminals 27 (only one of each pair is shown in FIG. 4), and the three pairs of plate-shaped relay terminals 25, The relay terminal 26 and the relay terminal 27 extend from the inside of the inner casing 21 through the second surface 212 through the base 11 in a direction intersecting the relay main body installation surface 111 of the base 11 and extend to the outside of the outer casing 10, and They are disposed on both sides in the short side direction of the inner casing 21, respectively.

As shown in FIG. 4, each of the relay terminal 25, the relay terminal 26, and the relay terminal 27 has a plate surface along the longitudinal direction of the inner casing 21 (in other words, substantially parallel to the second surface 212 facing the short side direction of the inner casing 21). The second surface 213) extends and is inserted into the first terminal groove 112 corresponding to the relay body installation surface 111 of the chassis 11. One of the plate surfaces of each of the relay terminal 25, the relay terminal 26, and the relay terminal 27 is exposed from the second surface 212. Further, the distal ends of the relay terminals 25, the relay terminals 26, and the relay terminals 27 are bent in the short-side direction of the chassis 11 and extend in a direction away from the chassis 11.

Among the three pairs of the relay terminal 25, the relay terminal 26, and the relay terminal 27, a pair of relay terminals 25 disposed in the vicinity of the coil terminal 24 are electrically connected to a fixed contact (not shown) as follows, and the fixed contact is The first movable contact 234 of the movable contact piece 232 can be in contact with or spaced apart from the opposite contact. Among the three pairs of the relay terminal 25, the relay terminal 26, and the relay terminal 27, the pair of relay terminals 27 disposed farthest from the coil terminal 24 are electrically connected to the following fixed contacts (not shown), which are The second movable contact 235 of the movable contact piece 232 can be in contact with or spaced apart from the opposite contact. Further, a pair of relay terminals 26 located between the three pairs of relay terminals 25, relay terminals 26, and relay terminals 27 are electrically connected to the movable contact piece 232. That is, each of the relay terminal 25, the relay terminal 26, and the relay terminal 27 is electrically connected to the contact mechanism unit 23.

The shield member 30 includes: a shield body 31, for example, a metal plate, as shown in FIG. 2, covering the relay body 20; and 5 pairs of ground terminals 32, the self-shielding body 31 intersecting the relay body setting surface 111 The upper portion penetrates the base 11 and extends to the outside of the outer casing 10.

The shield body 31 has a hollow rectangular plate shape along the outer shape of the inner casing 21 of the relay body 20. Further, the ground terminals 32 are respectively disposed on both sides in the short-side direction of the shield main body 31, and are disposed in parallel with and adjacent to the relay terminal 25, the relay terminal 26, and the relay terminal 27, respectively.

As shown in FIG. 5, each of the ground terminals 32 includes a main body portion 321 that extends through the base 11 in a direction intersecting the relay main body installation surface 111 to extend to the outside of the outer casing 10, and a protruding portion 322. The main body portion 321 protrudes toward the adjacent relay terminal 25, relay terminal 26, and relay terminal 27.

Further, as shown in FIG. 6, each of the ground terminals 32 extends in the longitudinal direction of the shield main body 31, and is inserted into the second terminal groove 113 corresponding to the relay main body mounting surface 111 of the base 11 as shown in FIG.

The board faces of the relay terminals 25, the relay terminals 26, the relay terminals 27, and the ground terminals 32 extend in the direction in which the relay terminals 25, the relay terminals 26, the relay terminals 27, and the ground terminals 32 are aligned (the longitudinal direction of the chassis 11). Specifically, the coil terminal 24, the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal on the same side in the short-side direction of the chassis 11 when viewed in a direction orthogonal to the relay main body installation surface 111 32 is arranged on a virtual straight line L extending in the longitudinal direction of the chassis 11, and one of the coil terminal 24, the relay terminal 25, the relay terminal 26, and the relay terminal 27 is located between the adjacent ground terminals 32, It is configured to be opened at a substantially constant interval D.

Further, in the above-described embodiment, the adjacent coil terminals 24, relay terminals 25, relay terminals 26, relay terminals 27, and ground terminals 32 are arranged at equal intervals, and the interval D is set to 0.3 mm.

According to the high-frequency relay 1, the board surface of the relay terminal 25, the relay terminal 26, and the relay terminal 27 and the board surface of the ground terminal 32 extend in the parallel direction of the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32, The relay terminals 25, the relay terminals 26, the relay terminals 27, and the ground terminals 32 adjacent to each other are arranged at intervals D in the parallel direction. Therefore, by adjusting the interval D by bringing the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32 adjacent to each other close to or apart from each other, the variation in the characteristic impedance can be suppressed, and the high-frequency characteristics can be improved.

Further, the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32 can be arranged in parallel in comparison with the high frequency relay in which the board surface of the relay terminal and the board surface of the ground terminal are not spaced apart in the parallel direction. Space saving in the direction of the upper cross. That is, in the high-frequency relay 1, on the one hand, high-frequency characteristics can be improved, and on the other hand, miniaturization can be achieved.

Further, the ground terminal 32 includes a main body portion 321 that extends through the base 11 in a direction intersecting the relay main body installation surface 111 to extend to the outside of the outer casing 10, and a protruding portion 322 that faces from the main body portion 321 The adjacent relay terminal 25, relay terminal 26, and relay terminal 27 are protruded. Thereby, the interval D between the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32 adjacent to each other is determined by the protruding portion 322 of the ground terminal 32, and therefore, for example, the protrusion is provided on the relay terminal to determine the interval. Compared with the high frequency relay of D, the deviation of the characteristic impedance can be suppressed, and the high frequency characteristic can be improved.

Further, the protruding portion 322 extends from the shield main body 31 to the outside of the outer casing 10 through the base 11 in a direction crossing the relay main body installation surface 111. Thereby, for example, the range of the interval D is increased by bringing the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32 adjacent to each other closer to or apart from each other than the high-frequency relay in which the protruding portion does not penetrate the chassis. Larger, it is possible to suppress variation in characteristic impedance, thereby improving high frequency characteristics.

Further, the interval D is determined according to the design of the high frequency relay 1, etc., and is not limited to 0.3 mm. Further, the interval D is not limited to being substantially fixed, and for example, it may be regularly or randomly changed between 0.1 mm and 0.3 mm.

It is sufficient that at least one of the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32 is provided. Any number of relay terminals and ground terminals can be set according to the design of the high frequency relay.

The various embodiments of the present disclosure have been described in detail above with reference to the drawings, and the various embodiments of the present disclosure are described. In the following description, as an example, a reference symbol is also added for description.

The high-frequency relay 1 according to the first embodiment of the present invention includes an insulating outer casing 10 including a base 11 having a relay main body mounting surface 111 and a box shape covering the relay main body mounting surface 111 of the base 11. The outer casing 12; the relay body 20 includes: an electromagnet portion 22 disposed inside the outer casing 10 and on the relay body setting surface 111 of the base 11 and capable of supplying current; and a contact mechanism portion 23 Opening and closing by supplying current to the electromagnet portion 22; and a shielding member 30 disposed inside the outer casing 10 and on the relay body setting surface 111 of the base 11; and the relay body 20 The method includes: at least one plate-shaped relay terminal 25, a relay terminal 26, and a relay terminal 27 extending from the relay body 20 through the base 11 in a direction crossing the relay body installation surface 111 to extend to the outer casing The outer portion of the body 10 is electrically connected to the contact mechanism portion 23; the shielding member 30 includes: a shielding body 31 covering the relay body 20; and at least a plate-shaped ground terminal 32 extends from the shield body 31 through the base 11 in a direction crossing the relay body installation surface 111 to extend to the outside of the outer casing 10, and the relay The terminal 25, the relay terminal 26, and the relay terminal 27 are arranged in parallel and adjacent to each other; the relay terminal 25, the relay terminal 26, the board surface of the relay terminal 27, and the board surface of the ground terminal 32 are along the relay terminal 25 and the relay terminal. 26. The parallel direction of the relay terminal 27 and the ground terminal 32 respectively extends, and the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32 adjacent to each other are spaced apart from each other in the parallel direction.

In the high-frequency relay 1 of the first embodiment, the board surface of the relay terminal 25, the relay terminal 26, and the relay terminal 27 and the board surface of the ground terminal 32 are along the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32. The parallel direction extends, and the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32 adjacent to each other are arranged at intervals in the parallel direction. Thereby, variation in characteristic impedance can be suppressed, and high frequency characteristics can be improved.

In the high-frequency relay 1 according to the second embodiment of the present disclosure, the ground terminal 32 includes a main body portion 321 that penetrates the base 11 from a direction in which the shield main body 31 intersects with the relay main body installation surface 111. The protrusion 322 protrudes from the main body portion 321 toward the adjacent relay terminal 25, the relay terminal 26, and the relay terminal 27, and extends to the outside of the outer casing 10.

In the high-frequency relay 1 of the second embodiment, the interval between the relay terminal 25, the relay terminal 26, the relay terminal 27, and the ground terminal 32 adjacent to each other is determined by the protruding portion 322 of the ground terminal 32, and thus, for example, In comparison with the high-frequency relay in which the projections are provided on the terminals and the intervals are determined, the variation in the characteristic impedance can be suppressed, and the high-frequency characteristics can be improved.

In the high-frequency relay 1 according to the third embodiment of the present disclosure, the protruding portion 322 extends from the shield body 31 through the base 11 in a direction intersecting the relay body installation surface 111 to the outer casing. The outside of the body 10.

In the high-frequency relay 1 of the third embodiment, the protruding portion 322 of the ground terminal 32 extends from the shield main body 31 to the outside of the outer casing 10 through the chassis 11 in a direction intersecting the relay main body installation surface 111. Therefore, for example, the variation in the characteristic impedance can be suppressed as compared with the high-frequency relay in which the protruding portion does not penetrate the chassis, and the high-frequency characteristics can be improved.

Further, by appropriately combining any of the above-described various embodiments and modifications, it is possible to obtain the respective effects. Further, combinations of the embodiments or combinations of the embodiments or combinations of the embodiments and the embodiments may be employed, and combinations of the features of the different embodiments or the embodiments may be performed.

The present invention has been fully described with reference to the preferred embodiments of the invention, and the various modifications and modifications are known to those skilled in the art. Such variations and modifications are to be understood as included within the scope of the present disclosure as defined by the appended claims. [Industrial availability]

The high frequency relay of the present disclosure is applicable, for example, to a wireless relay device.

1: high frequency relay 10: outer casing 11: base 12: outer casing 20: relay body 21: inner casing 22: electromagnetic stone portion 23: contact mechanism portion 24: coil terminals 25, 26, 27: relay terminal 30: shielded Member 31: shield body 32: ground terminal 111: relay main body installation surface 112: first terminal groove 113: second terminal groove 211: first surface 212, 213, 214, 215: second surface 231: movable iron piece 232: The movable contact piece 233: the rotating shaft 234: the first movable contact 235: the second movable contact 321: the main body portion 322: the protruding portion D: the interval L: the virtual straight line

Fig. 1 is a perspective view of a high frequency relay according to an embodiment of the present disclosure. Fig. 2 is a perspective view showing a state in which the outer casing of the high frequency relay of Fig. 1 has been removed. 3 is a top plan view of the base of the high frequency relay of FIG. 1. Fig. 4 is a perspective view showing an electromagnet portion and a contact mechanism portion of a relay main body of the high-frequency relay of Fig. 1; Figure 5 is a bottom plan view of the relay body of the high frequency relay of Figure 1 covered by a shield member. Fig. 6 is a side view of the relay body of the high frequency relay of Fig. 1 covered by a shield member.

Claims (3)

A high frequency relay comprising: an insulative outer casing comprising a base having a relay body setting surface; and a box-shaped outer casing covering the relay body setting surface of the base; the relay body comprising: an electromagnetic stone portion, a current is supplied to the interior of the outer casing and on the relay body of the base, and a contact mechanism is provided to open and close by supplying current to the electromagnet; and a shielding member is disposed at The interior of the outer casing and the relay body of the base are disposed on a surface; and the relay body comprises: at least one plate-shaped relay terminal from which the relay body intersects with a surface of the relay body a direction extending through the base to the outside of the outer casing and electrically connected to the contact mechanism portion; the shielding member comprising: a shielding body covering the relay body; and at least one plate shape a grounding terminal extending from the shielding body in a direction crossing the installation surface of the relay body a seat extending to the outside of the outer casing and disposed in parallel with and adjacent to the relay terminal; a plate surface of the relay terminal and a plate surface of the ground terminal along the relay terminal and the ground terminal The parallel directions extend, and the relay terminals and the ground terminals adjacent to each other are arranged at intervals in the parallel direction. The high frequency relay according to claim 1, wherein the grounding terminal comprises: a body portion extending from the shielding body through the base in a direction crossing the relay body setting surface The outer portion of the outer casing; and the protruding portion projecting from the main body portion toward the adjacent relay terminal. The high frequency relay according to claim 2, wherein the protruding portion extends from the shield body to the outer casing through the base in a direction crossing the relay body installation surface. Externally.